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(No Model.) 4 Sheets-Sheef 1.

1). JENKINS. MORTISING MACHINE.

No. 486,473. Patented Nov. 22, L892.

(No Model.) 4 Sheets-Sheet 2* D. JENKINS. MORTISING MACHINE.

Patented N0v.-22, 1892.

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(No Model. 4 SheetsSheet a. D JENKINS MORTISING MACHINE.

Patented Nov. 22, 1892.

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4 Sheets-Sheet 4. D. JENKINS. MORTIYSING MACHINE.

Patented Nov. 22, 1892.

. QM I Li (No Model.)

' UNITED-STATES PATENT OFFICE.

DAVID JENKINS, OF SHEBOYGAN, WVISCONSIN, ASSIGNOR TO THE JENKINS MACHINE COMPANY, OF SAME PLACE.

MORTlSlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 486,473, dated November 22, 1892.

7 Application filed November 23, 18;91. Sem'al No. 412,781. (No model.)

To crZZ whom, it may concern: gear-wheel L,loose on a vertical shaft M, the

Be it known that 1, DAVID JENKINS, a citilatter having its bearings in the machinezen of the United States, and a resident of frame, and the hub of this bevel gear-wheel Sheboygan, in the county of Sheboygamand} is provided with clutch-teeth b for engagein the State of Wisconsin, have invented cerment with similar teeth 0 on a grooved collar tain new and useful Improvements in Mor-j N,thatis splined on the vertical shaft. tising-Machines; and I do hereby declare that A foot-leverO, fuloru med on a suitable supthe following is a full, clear, and exact deport d, has a spanner connection with the scription thereof. grooved clutch-collar, and impinging against 60 My invention has for its object to provide the outer end of this lever is a vertically-dean eight-tool mortising-machine in which pending arm e, forming part of a hand-lever each tool-carrier may have an independent P, that is fulcrumed to the upper portion of reciprocation and on which the Work may be said machine-frame. The hand-leverPis limpositioned at various angles. ited as to movement in either direction by a 65 To this end the invention consists in cer stop-guidefon the machine-frame and protain peculiarities of construction and fcombi-l vided with a pin 9 for automatic engagement nation of parts to be hereinafter described with a hanger h, that is pivoted on said mawith reference to the accompanying drawings chine-frame, and if said hand-lever be lifted and subsequently claimed. sufficiently high to permit of the pin engag- 7o In the drawings, Figure 1 represents aside ing the hanger the foot-lever 0 will be free elevation of my mortising-machine, partly to tilton its fulcrum, and thus cause an aubroken away and in section, on linel l of the tomatic coupling of the clutch-collar N and succeeding figure; Fig. 2, a plan view of the bevel gear-wheel L, whereby motion will be same, partly broken away and in section, on imparted to the vertical shaft M through the 25 line 2 2 of the preceding figure, neither of medium of the gearing above described, this the feed-tables being shown; Fig. 3, a detail motion being automatically stopped by a plan, partly in section, on line 3 3 of Fig. 4, lowering of said hand-lever, the depending illustrating the mounting of the bit-boxes, arm e thereof acting to tilt said foot-lever on Fig. 4C, a transverse section of the machine on its fulcrum in the proper direction to disen- 0 line 4 4 of Fig. 1 with certain of the parts in gage the clutch-teeth on said collai fatidlb v'el elevation; Fig. 5, an end view, partly in secgear-wheel.

tion, on line 5 5 of Fig. 1; and Fig. 6, a de Fast on the upper end of each verticalshaft tail plan view, partly in section, illustrating M is a cam Q in opposition to a pro ection one of the feed-tables. such, for instance, as an antifriction-roller i,

5 Referring by letter to the drawings, A rep-- that depends from a slide j, adjustable in a.

resentstheframe of mymachine provided with table R, that is dovetailed or otherwise suitsuitable bearings at one side midway of its ably secured to the machine-frame, so as to length foratransverse drive-shaft B, that has move longitudinally thereon. There is one a cone-pulley C fast thereon. A spur-pinion of the tables R at each end of the machine,[ o

40 D, fast on the shaft B, drives an idler E, that and these tables are moved toward the centurns on a stud extended laterally from the ter of said machine by the camsQacting upon machine-frame, and this idler is in mesh with the antifriction-rollers z', depending from the r a spur-wheel F, fast on another transverse adjustable slidesj. each of the tables being shaft G,that has its bearings in said frame. moved independently of the other, although 5 5 Fast on the inner end. of the transverse preferablyalternate therewith. lVhen either shaft G is a bevel-pinion H in mesh with a one of the tables has been moved toward the bevel gear-wheel I, that is fast on a central center of the machine and the working face longitudinal shaft J, having its bearings in of the relative cam Q passes out of contact the lower portion of the machine-frame. with the antifriction-roller i, that depends.

50 Fast on each end of the longitudinal shaft J from the slide j in the table, the latter will be is a bevel-pinion K, that meshes with a bevel automatically returned to its normal position by means of weights S, flexibly connected thereto, the flexible connections m for these weights being preferably run over pulleys 92, arranged in bearings at the adjacent end of said machine. The slidej in each table is connected to a flange on the latter by an adjusting-screw p, and by means of this screw said table may be positioned to regulate the normal distance between it and the tools hereinafter described. The table is provided with a longitudinal slot q, that engages a setbolt 0" on the slide, and by means of this setbolt said slide and table are held together against movement on each other after an adjustment by the screw 13 has been effected.

As bestillustrated in Figs. 1 and 5, a striker 8 may be adjustably secured to each table and positioned so as to automatically disengage the hanger h from the pin 9 onthe relativehand-lever P, when said table is returned to its normal position by the weights above described.

Pivotally connected at its center to each of the tables is aplate'l, having segmental slots 25, that engage set-bolts u on said table, and by means of this construction and arrangementof parts said plate may be adjusted to certain angles. Hinged at its ends to each of the plates T .is a transverse bar U, and by means ofa turnbuckle V, working on screwthreaded rods 1; w, respectively pivoted to the said plate and bar, the latter may be adj usted to stand at more or less of a right angle to the former.

Bolted to each bar adjacent to its endsare sleeves W, having cam-surfacesmat their free ends. Arranged to work in each sleeve W is a spring-controlled dog X, between which and the adjacent bar U the material to be operated upon is positioned and clamped. That end of each dog Xthat extends through t he cam end of its relative sleeve is engaged by a lever Y, having lugs y thereon for impingement against the cam-surfaces on said sleeve. By means of a set-nutz on the shankof each claim ping-dogin opposition to the relative lever the tension of the spring controlling said dog may be readily regulated to lengthen or shorten the distance between the working end of this dog and the bar to which the sleeve containing said spring is bolted. As shown, there are two clamping-dogs to each of the bars U, and thelevers Y belonging to these bars are connected by means of a link Z, one of the levers being extended a suiiicient distance beyond the link to serve as a handle to which I pivot a spring-controlled latch b for engagement with the teeth of a segment-rack c on the adjacent one of thesleeves W, and by the adjustment of this handle-lever both clampingdogs are simultaneously operated.

To clamp the material in position on the machine, the levers Y are swung in the proper direction to cause their lugs y to travel against the rise of the cam-surfaces as on the adjacent sleeves W, and thus the clamping-dogs are drawn back against the power of their controlling-springs, said levers being locked in their adjusted position by the automatic engagement of the latch b with the teeth on the opposing segment-rack, and the material is unclamped by a reverse movement of the aforesaid levers permitting the dog-controlling springs to expand.

Referring again to the drive-shaft B, I show a bevel-pinion A, splined on the inner end thereof and held fast by means of a set-screw d, as best illustrated in Fig. 2. When properly set, the pinion A engages with a bevel gear-wheel B on a shaft 0, that has its bearings in the machine-frame, and carries disks D D, each of the latter having an arm E eccentrally pivoted thereto and provided with a segmental slot e for engagement with a set-nut f, whereby this arm is held in the position which it may be adjusted to regulate the throw of a pitman F, connected thereto. The disk relative to each armvis preferably provided witha scale opposed to an indicator g on said arm, whereby the throw of the pitman F may be accurately determined. The shaft 0 is provided with a spur-wheel G, that engages asimilar wheel H on another shaft 1, and this latter shaft also carries disks D D, provided with pivotally-adjustable eccentric. arms E, connected to pitmen F, as best illustrated in Fig. 2. Each of the pitmen F connects the relative arm E with one arm of a bell-crank J, pivoted to a bracket on the machine-frame, and the other arm of this lever is provided with an elongated eye h, thatengages a lug t" on a slotted bar K, arranged to slide in guides on a central transverse baseL, that forms part of said machinerframe. A suitable bolt j serves to adjustably secure a standard M on each of the bars K, and this standard is provided with feet that engage guidegrooves m in the sides of the base L, above described. As readily seenin the drawings, the bars K are arranged in pairs on opposite sides of the center of the machine, and. as there is a standard M on each of the bars it is desirable, in order to obtain the greatest amount of adjustment and permit of a variabletravel, that the feet of one standard engage a separate groove in the base L from that engaged by the feet on the other standard in the pair, this arrangement of parts being best illustrated in Figs. 3 and 4. Each of the standards M is provided with vertical slots 11. for engagement with lateral set-screws p, by means of which twin boxes N are retained on said standard, vertical screws q, having their bearingsin the standard, being employed to adjustthe boxes to various elevations. The boxes N serve as bearings for tool-spindles 0, held against longitudinal movement by suitable collars a", and arranged on each spindle midway of its length is a pulley s for connection with a driving-belt. Therebeing four standards and an equal number of the spindles designed to carry a tool P at each end, I provide for eight tools that may do their work simultaneously or in gangs of four, accordingly as the sliding tables B may be operated together or alternately to bring the material up to said tools, and it is obvious that any one or more of the standards M may be disconnected from its reciprocating mechanism and the tools detached from the spindle carried with said standard to lessen the number of cuts in said material.

By the foregoing description of the construction and arrangement of parts constitut ing my machine it will be seen that when the bevel-pinion A is positioned to mesh with the bevel gear-wheel B the bars K and the tool-carrying standards thereon will be reciprocated on the base L and the material being fed up by the cam and weight controlled sliding tables R mortises, corresponding in number to that of the reciprocating tools, will be cut in said material, each of these mortises being of a position, depth, length and angle as the various possible adjustments above described may determine.

In case it is desirable to convert the mortising-machine into a boring-machine the bevel-pinion A is set back on the shaftB far enough to not engage with the bevel gear-- wheel B, and consequently there will be no reciprocation of the tools when in contact with the material fed up by the cam and weight controlled sliding tables.

Having thus described my invention, what I claim as new, and desire to secure by Letters .Pat cut, is

.ciprocative on the base, tools extended from the supports, a positively-adjustable carrier .loose on the base in opposition to the tools,a

projection on the carrier, a rotative cam opposed to the projection, and a retractive mechanism for said carrier independent of the cam, substantially as set forth.

3. The combination of a frame provided with a stationary transverse base, a series of supports arranged on the base, tools extended from the supports, a positively-adj ustable carrier loose on the base in. opposition to the tools,a pivotally-adjustable clamp mechanism forming part of the carrier, a projection on said carrier, a rotative cam opposed to the projection, and a retractive mechanism for the aforesaid carrier independent of the cam, substantially as set forth.

4. The combination of a frame provided with a stationary transverse base, a series of supports arranged on the base, tools extended from the support, a positively-adjustable carrier loose on the frame in opposition to the tools, a clamping mechanism forming part of the carrier and adjustable to various angles, a projection on said carrier, a rotative cam opposed to the projection, and a retractive mechanism for the aforesaid carrierindependent of the cam, substantially as set forth.

5. The combination of a frame provided with a stationary transverse base, a series of supports arranged on the base, tools extended 7 from the support-s, a positively-adjustable carrier loose on the framein opposition to the tools, a clamping mechanism that forms part of the carrier and has a pivotal and angular adjustment, a projection on said carrier, a rotative cam opposed to the projection, and a retractive mechanism for the aforesaid carrier independent of the cam, substantially as set forth, I

6. The combination of a frame provided with a stationary transverse base midway of its length, supports arranged on the base, tools extended from the supports toward both ends of the frame, carriers loose on said frame in opposition to the tools, a slide forming part of each carrier, suitable means for adjusting the latter on its slide, a projection depending from the slide, a rotative cam opposed to said projection, and suitable means for returning the relative carrier to its normal position after being actuated by the cam, substantially as set forth.

7. The combination of a frame provided with a stationary base having tool-support ing devices mounted thereon, carriers loose on the frame at right angles to said base, a depending projection forming part of each carrier, a shaft carrying a cam opposed to said projection, a clutch-hub gear-wheel loose on the shaft, a levercontrolled clutch collar splined on said shaft in opposition to the hub of the gear-wheel,a driving-pinion for this wheel, and suitable means for returning the relative carrier to its normal position after being actuated by the cam, substantially as set forth. 1

8. The combination of a frame provided with a stationary base having tool-support ing devices mounted thereon, carriers loose on the frame at right angles to said base, a depending projection forming part of each carrier, a shaft carrying a cam opposed to said projection, a clutch-hub gear-wheel loose on the shaft, a clutch-collar splined on said shaft in opposition to the hub of the gear-wheel, a foot-lever connected to the clutch-collar, a hand-lever having a depending arm impinged against the foot-lever, a driving-pinion for said gear-wheel, and suitable means for returning the relative carrier to its normal position after being actuated by the cam, substantially as set forth.

9.'The combination of a frame provided with a stationary base having tool-supporting devices mounted thereon, carriers loose on the frame at right angles to said base, a depending projection forming part of each its carrier, a shaft carrying a cam opposed to said projection, a clutch-hub gear-wheel loose on the shaft, a clutch-collar splined on said shaft in opposition to the hub of the gear-wheel, a foot-lever connected to the clutch-collar, a hand-lever having a depending arm impinged against the foot-lever, a pivotal hanger for the hand-lever, a driving-pinion for said gearwheel, and suitable means for returning the relative carrier to its normal position after being actuated by the cam, substantially as set forth.

10. The combination of a frame provided with a stationary base having tool-supporting devices mounted thereon, carriers loose on the frame at right angles to said base, a depending projection forming part of each carrier, a shaft carrying a cam opposed to said projection, a clutch-hub gear-wheel loose on the shaft, a clutch-collar splined on said shaft in opposition to the hub of the gear-wheel, a foot-lever connected to the clutch-collar, a hand-lever having a depending arm impinged against the foot-lever, a pivotal hanger for the hand-lever, a striker on the relative car- "rier' for automatically detaching said hanger and hand-lever, adriving-pinion for said gearwheel, and suitable means for returning said carrier to its normal position after being actuated by the cam, substantially as set forth.

11. The combination of the reciprocative tables having plates mounted thereon, a bar connected to each plate, sleeves fast on the bar and having cam-surfaces at their free ends, spring-controlled dogs arranged to work in the sleeves, levers loose on the dog-shanks and provided with lugs opposed to the camsurfaces of said sleeves, a link connecting the levers, a latch carried by one of these levers, and a segment-rack for engagement with the latch, substantially as set forth.

12. The combination of the reciprocative tables having plates mounted thereon, a bar connected to each plate, sleeves fast on the bar and having cam-surfaces at their free ends, spring-controlled dogs arranged to work in the sleeves, levers loose on the dog-shanks and provided with lugs in opposition to the cam-surfaces of said sleeves, a set-nut adjustable on each do -shank in opposition to the lever thereon, a link connecting the levers, a latch carried by one of these levers, and a segment-rack for engagement with the latch, substantially as set forth.

13. The combination of a frame provided with a stationary transverse base midway of its length, supports arranged on the base, tools extended from the supports toward both ends of the frame, tables reciprocative on said frame in opposition to the tools, a slide positively adjustable in each table and provided with a depending projection, a rotative cam opposed to the projection, suitable means for returning the table to its normal position after action of the cam on said projection, and an independently-adjustable clamping mechanism on each of said tables, substantially as set forth.

14. The combination of the reciprocative tables, plates mounted on the tables, a bar hinged to each plate, clamping-dogs carried with the bar in opposition thereto, screwthreaded rods pivotally connected to said plate and bar, and a turnbuckle uniting the rods, substantially as set forth.

15. The combination of the reciprocative tables having segment-ally-slotted plates pivoted thereon, set-bolts on the table engaging the plate-slots, a bar hinged to each plate, clamping-dogs carried with the bar in opposition thereto, screw-threaded rods pivotally connected to said plate and bar, and a turnbuckle uniting the rods, substantially as set forth.

16. The combination of a frame having a stationary transverse base midway of its length provided with horizontal side grooves, a series of bars reciprocating in the base lengthwise of the same, a series of standards, each of which is connected to one of the bars and has feet engaging a single one of the base-grooves, supports independently adjustable on the standards, tools extended from the supports toward both ends of the frame, and a carrier reciprocative on said frame in opposition to the tools, substantially as set forth.

17. The combination of a frame provided with a stationary base having side grooves in the direction of its length, a series of bars reciprocative in the base lengthwise of the same and adjustable as to throw, a series of standards, each of which is connected to one of the bars and has feet engaging a single one of the base-grooves, tool-supports mounted on the standards, and a carrier reciprocative on said frame at right angles to the said base, substantially as set forth.

18. The combination of a frame provided with a stationary transverse base midway of its length, a series of bars loosely arranged in the base lengthwise of the same, a corresponding series of bell-cranks pivoted to the frame and joined to the bars, a series of rotative disks having eccentric arms adjustable thereon, a pitman connecting each eccentric arm with one of the bell-cranks, tool-supporting devices secured to said bars, and carriers reciprocative on said frame at right angles to said base, substantially as set forth.

19. The combination of the herein-described frame, the transverse drive-shaft provided with a spur-pinion, an idler driven by said pinion,a counter-shaft carrying a spur-Wheel in mesh with the idler, a bevel-pinion on the latter shaft, a longitudinal shaft carrying a bevel gear-wheel in mesh with the bevel-pinion, vertical shafts geared to the longitudinal one, a clutch mechanism controlling the rotation of each vertical shaft, cams carried by these latter shafts, sliding tables having projections in the paths of the cams, suitable means for returning the tables to their norshaft, and a pitman connecting each of the mal position after being actuated by said disks with one of the bell-cranks, substancams, a clamping mechanism carried by each tiaily as set forth. table, a stationary base arranged on the frame In testimony that I claim the foregoing I I 5 5 midway of the tables, a series of bars loosely have hereunto set my hand, at Sheboygan, in arranged in said base lengthwise of the same, the county of Sheboygan and State of Wistool-supporting devices connected to each bar, consin, in the presence of two witnesses.

a series of bell-cranks pivoted to said frame DAVID JENKINS. and corresponding in number to that of the Witnesses: 10 bars to which they are joined, disk-carrying M. A. LONG,

shafts having gear connection with said drive- W. W. WOLFF. 

